package main

import (
	"fmt"
	"net/url"
)

type my map[string]string

func main() {
	var x map[string]string
	fmt.Println(x)
	fmt.Println(nil)
	fmt.Println(x == nil)
	//x["sss"] = "sss"

	y := url.Values{}
	y.Set("sss", "eee")

	z := my{}
	z["ssss"] = "ddddd"
}
